As I understand it, the tool you accidentally cancelled is known as piwiz.desktop (also known as the "First-run Wizard"), and it is located here: /etc/xdg/autostart/piwiz.desktop.
You might first want to check to see if it's still there, and re-start it if you can.
Another alternative is to re-flash your SD card using rpi-imager. Follow these ...
Assuming you has access to a Linux OS and the NOOBS file you are using is called noobs.zip
fdisk -l noobs.img
Get the Start value for the Linux Type device and multiply it by Sector Size. For instance: 532480 x 512 = 272629760
Then use this value as an offset to mount the img in a folder
sudo mount -o loop,offset=...